[bug-fix] Set the db sync height

[rajarshimaitra]

Description

Fixes #719

Previously we weren't setting the db sync height in populate_test_db
macro even when current height is provided.. This creates a bug that
get_funded_wallet will return 0 balance.

This PR fixes the populate_test_db macro and updates tests which were
previously dependent on the unsynced wallet behavior.

Notes to the reviewers

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt and cargo clippy before committing

Bugfixes:

• I've added tests to reproduce the issue which are now passing
• I'm linking the issue being fixed by this PR

[rajarshimaitra]

Updated with review comments..

[vladimirfomene]

utACK

[rajarshimaitra]

Thanks @vladimirfomene for the catches.. Updated..

[danielabrozzoni]

utACK b8ce842

[rajarshimaitra]

Thanks @afilini for the look.. Updated as suggested.. In the last dev call we talked about releasing this as a patch version for some downstream libs to update.. See bitcoindevkit/bdk-cli#102 (comment)

[danielabrozzoni]

Sorry I didn't notice the two issues that Alekos has found, I should have inspected the code better.

re-utACK a72a97b

[notmandatory]

@rajarshimaitra even though we talked about doing a fix release for this, since this is a test framework fix and code freeze for 0.22 is next Wed. (Aug 31), can we skip doing a fix release only for this PR and wait for 0.22 to put it out (Sept 7)?

[rajarshimaitra]

@notmandatory sounds good to me.. Only needed for the bdk-cli PR.. That can wait a bit..

[rajarshimaitra]

Updated and rebased..

[afilini]

ACK 08668ac